Delayed-action device for impact-fuses.



K. WIBSBR.

DELAYED ACTION DEVIGE'FOR IMPACT FUSES.

APPLICATION FILED DEO.31,1912.

Patented Nov. 25, 1913.

only a narrow segmental tongue 5 UNITED STATES PATENTOFFICEQ KARL\VTIESIJR. OF BREDENEY. GERMANY. ASSIGNOR T0 FRIED. KRUPP AKTIEN-GESELIJSCHAFT, OF ESSEN-ON-TI-IE-RUHB, GERMANY.

DELAYED-ACTION DEVICE FOR IMPACT-FUSES.

Application filed. December 31. 1912.

Specification of Letters Patent.

Patented Nov. 25,1913.

Serial No. 739.562.

The object of the invention is the construction of such fuses whereinany undesirable retardation of the ignition is avoided when thedelayed-action device is disconnected.

One embodiment of the invention is illustrated in the drawing showing acombination fuse provided with double ignition, wherein the turn-cock isalso constructed to connect the time fuse. which is provided with a timetrain. either with the shrapnel bursting charge or the shell burstingcharge.

Figure 1 shows a longitudinal section through the'axis of the fuse; Fig.an elevation partly in section along line '2 2 of Fig. l and seen fromthe left with a different position in some of the details and Fig. 3 anelevation of the fuse seen in the direc tion of the arrow in Fig. 1.

The turn-cock B is revolubly mounted in the bod of the fuse A and theaxis of revolution of the cock B intersects the longitudinal axis of thefuse at right angles. In order to secure the cock against displacement.a ring C is provided and threaded in the body of the fuse. which ringincloses a tapered part b of the turn cock. The inner end of thisturn-cock B has a recess wherein the rear end of the impact hammer D.containing the fulminate (Z enters. The recess 5 is made so large thatof the inner end of the turn -cock B,

remains. A retarding charge 6 is arranged in the tongue ZR. which chargeis inserted in the passage leading from the impact hammer to thebursting charge of the shell, as is illustrated in Fig. l. with thetherein shown position of the turn-cock. With this position of theturn-cock. the mark I). located on its outer face. registers with a markprovided on the ring C. The end of the impact hammer D entering therecess 6 is shaped in such a manner as illustrated in the drawing. thatthe turn-cock ma be turned to either side of its position. as located inFigs. 1 and 3. that the tongue b as shown in Fig. 2 will open thepassage for the ignition flame coming from the impact h a in me r.

The mark If of the turn-cock B registers with a mark (1- according tothe angular position illustrated in Fig. 2: and it registers with themark of the ring C when the turn-cock is revolved from the position ithas in Fig. 1 into a position symmetrical to the position it has in Fig.2 as regards the longitudinal axis of the fuse. The turn-cock B isfurthermore provided with two channels 71 and Z). The channel 5penetrates the tapered part b of the turncock and connects the timetrain E and the bursting charge of the shrapnel. when the cock B isturned into such an angular position, that the mark 0 registers with themark 0 The channel If leads from the conical surface of the tapered part7) in an inwardly inclined direction and terminates in the recess Z1 toone side of the tongue 6 As shown in Fig. l. the arrangement is such.that the channel 7)7 connects the time train with the channel leadingtothe bursting charge of the shell when the turn-cock has the positionwherein the mark 5 registers with the mark 0 If the mark 0' registerswith the mark a. the time train will he cut off from the bursting chargeof the shell as well as from that of the shrapnel.

As will be evident from the above description. th fuse will act onimpact firing with delayedaction. compare Fig. 1 when the mark bregisters with the mark 0; and without delayed-action. see Fig. 2 whenthe -mark 5 registers with either mark 0 or c.

When firing with the time train. shrapnel or shell act-ion will beobtained depending on whether the mark 6 registers with mark 4" or mark0 Should the projectile prematurely meet with an obstructionduring timetrain firing. the impact hammer will in both cases cause instantaneousignition.

By means of the recess 6 it is possible to place the impact hammer soclose to the lair-sting charge of the shell, that with the fuse, havinga retarding eharge, said mem her being provided with passages andadapted to connect and disconnect the time train of the fuse with thebursting charge of a shell and a shrapnel respectively.

2. In an impact fuse, a delayed-action device comprising a revolublemember in said fuse, having a retarding charge, said mem ber beingprovided with a channel adapted to connect the time train of the fusewith the bursting charge of shell, with said member in one position; andcut out the passage of the igniting flame from said time train to saidbursting charge, with said member in another position.

In an impact fuse, a delayed-action vice comprising a revoluble memberin said fuse, having a retarding charge, said member being provided witha longitudinal channel connecting the time train of the fuse with thebursting charge of the shell, with said member in one position, the axisof revolution of said member being perpendicular to the longitudinalaxis of the fuse.

4. In a combination impact and time fuse having a time train and animpact hammer; a turn-coclgsitua'ted with its axis at right angles tothe axis of the fuse; a recess at the inner end of said turn-cockforming a projeoting tongue inserted between said hammer and thebursting charge of the shell, a retarding charge in said tongue; saidtongue causing delayed-action in the fuse when said tongue is situatedcentrally relative to said hammer; a free passage for the flame fromsaid hammer, when said tongue is turned to one side, said turn-cocksimultaneously connecting one and disconnecting another passage fromsaid time train to either of the bursting charges for the shrapnel andthe shell.

5. In a combination impact and time fuse having a time train and animpact hammer; a turn-cock, situated with its axis at right angles tothe axis of the fuse; a recess at the inner end of said turn-cockforming a projecting tongue insertedbetween said hammer and the burstingcharge of the shell, of a retarding charge in said tongue; said tonguecausing delayed action when said tongue is situated centrally relativeto said hammer, and causin free passage for the flame from said hammerto a bursting'charge,

when said tongue is turned out of its central position; a transversechannel in said turn-cock and a longitudinal channel there in; saidtransverse channel connecting the time train of the fuse with thebursting charge of the shrapnel when said turn-cock stands to one sideof the central position; and said longitudinal channel connecting saidtime train with the bursting charge of the shell when said turn-cockstands to the other side of the central position.

(3. In an impact fuse, a delayed-action device comprising a revolublemember in said fuse, having a retarding charge, the axis of revolutionof said member being perpendicular to the longitudinal axis of the fuse,said member being provided with passages and adapted to connect anddisconnect the time train of the fuse with the bursting charge of ashell and a shrapnel respectively, said device working withdelayed-action on impact when sa-id'member stands in its centralposition.

7. In an impact fuse, a delayed-action device comprising a revolublemember in said fuse, having a retarding charge, the axis of revolutionof said member being perpendicular to the longitudinal axis'of the fuse.said member being provided with pi and adapted to connect and disconn, tthe time train of the fuse with the bursting charge of a shell and ashrapnel respectively. said device working with delayedaction on impactwhen said member stands in its central position and withoutdelayedaction when said member is turned out of its central position.

8. In an impact fuse. a delayed-action de- I vice comprising a revolublemember in said fuse. having a retarding charge, said memher beingprovided with passages and adapted to connect and disconnect the timetrain of the fuse with the bursting charge of a shell and a shrapnelrespectively, said device working with delayed-action on impact whensaid member stands in its central position and without delayed-actionwhen said member is turned out of its central position andsimultaneously connecting said time train with the one and disconnectingit with the other of said bursting charges by means of said passages.

9. In an impact fuse, a delayed action device comprising a revolublemember having its axis of revolution perpendicular to the fuse axis,said member having a recess, an impact member entering said recess, afulminate in said impact member, a projecting tongue formed in saidrevoluble member and carrying a retarding charge, whereby, on turningsaid revoluble member a certain amount, said retarding charge will beshunted out of the path of the igniting flame.

10. In an impact fuse, a delayed action device comprising a revalublemember ba ing its axis of revolution perpendicular to i the fits axis,said member having a recess, an impact member entering said recess, afulminate in said impact member, av pro jet-ting tongue formed in saidrevnluble member and carrying a retarding charge, said tongue bein;- S0narrow, that a slight turning of said revoluble member will cause saidtnngue to be entirely removed from the path of the igniting flame.

11. in a combination impact and time fuse having an impact member and atin train. a delayed action de ce comgirising a revnluble member havingits axis. of revs lutinn transveree tn the fuse axle, sad rcx'n lublemember being provided with (\Yn p ,1; were and having a rccees enteredby w, c impact i'nember. a fuln'iinate in aid impart member. i narrowprojecting tongue -med in Said rei'nluble member and can I n a retardingharge id in nywt mem her being ministructcd t0 120W said rci'wiz-fmember '0 be turned bath tn the one and the 01 her side cf the fuse axiwhereby gait. innn'ue may be entirely rcmnved tram the path of theigniting flame: and the one of a d passages being adapted to cnnnect aidtime train with the ehrapncl charge when eaid revolublc fneniber turnedto the one side of the fuse LIlS and the other of said passages adaptedto conne t said time train with the grenade charge when said re \'0luf eide I ble member is turned to the other side iii axis.

1'2. In a combination impact and tinni'ae llili'lflg an impact memberand a time uain, a delayed action device cemprising a revoluble memberha ring its axis at rev liztinn transverse to the fuse ax s. saidreruluble n'ien'iber being provided with two pat sages and having arecess entered L) aaid imwict member, a fulminate in said impa t memb ra ram-0W projecting tongue formed i in said revoluble member andcarrying a :lmrg; said impact member being rd in aimv; said r relnblemember u: in. turned Quill to the an; ad to the other xv said ton;

art a rdii m :iist 1-1,

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grrnadc chaigre 1 her s terncd to the ne and it 2:1," connc t a d ti:char n: when sai a, t-i the Milt?! si le t t The fnregoing s'iecitiratinn signed at Bar men, Germany, this llth (lay of December,1912.

the ritraprci wrr r turned In presence l'lliLiIB h't'ritn. Arm-1R1 Nitrnn

